Original scientific paper
Analysis of Elongation until the Break of the Plain Weft-Knitted and Double-Faced Fabrics
Tea Jovanović
; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
Željko Penava
orcid.org/0000-0002-4097-6230
; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
*
Zlatko Vrljičak
; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia
* Corresponding author.
Abstract
From a technical standpoint, force-elongation diagrams of plain knitted fabric and double-faced knitted fabric made of 20 tex cotton yarns were examined. Strip samples were cut in the direction of courses and wales which were extended until the break using the computer-controlled tensile strength tester. During the stretching process, the computer records the force-elongation values of the knitted fabric. The numerical data from the computer's tensile strength tester are uploaded to certain computer programs, which define the mathematical shape of the stretching curve. The force-elongation curve can be divided into four basic parts: 1. from the start of stretching to the end of elastic deformation of the fabric; 2. from the end of elastic deformation to the vertex of the curve; 3. from the vertex of the curve to the start of plastic deformation; and 4. from the start of plastic deformation to the knitted fabric break. For several of the mentioned sections, the amount of work required to stretch the knitted fabric till it breaks was calculated.
Keywords
knitted fabric; jersey; double faced fabric; cotton; force-elongation diagram; analysis
Hrčak ID:
328516
URI
Publication date:
1.12.2024.
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